I'm afraid to work that out your going to have to do some homework yourself. Personally, I think its too early so other than saying save as much as you can, its hard to give guidance.

FIFA have not yet published the match schedule or ticket prices. Are you planning on staying for the whole thing, and travelling around, or just a few games in one or two locations? Where are you travelling from? Are you planning on staying in hotels or hostels/camping like many did for Euro 2012?